Two identical black-body plates P and Q are at temperatures Tₚ and Tq, with Tq < Tₚ. The net radiative power per unit area from P to Q is W₀. Two identical intermediate plates are then inserted between P and Q, and heat transfer occurs only between adjacent plates. In steady state the power per unit area is Wₛ. Find W₀/Wₛ.

Physics · Thermodynamics · heat transfer due to radiation

JEE Advanced 2025 Paper 1

Two identical black-body plates P and Q are at temperatures Tₚ and Tq, with Tq < Tₚ. The net radiative power per unit area from P to Q is W₀. Two identical intermediate plates are then inserted between P and Q, and heat transfer occurs only between adjacent plates. In steady state the power per unit area is Wₛ. Find W₀/Wₛ.

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